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20130411
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correspondent pete williams is standing by. i am just reading information that you put in regarding the components of this bomb and what authorities believe was used to make the explosives. what can you tell me? >> they say they were crudely made. that doesn't mean that they weren't powerful and they were. they were made with gunpowder, bbs and ball bearings packed inside a pressure cooker. let me point to a picture from a homeland security bulletin. we're going to get in real tight on these little pots down here. this is what pressure cookers look like. give it a second to focus and see how much tighter we can get. these are what pressure cookers look like in case you haven't seen them. these are rather inexpensive pressure cookers. in case you've not ever dealt with one. a pot with a cover on it that you can make basically air tight and food cooks faster. and then for at least a decade, they've been used to make bombs around the world. so inside is the explosive and the authorities believe it is gunpowder or smokeless powder. all these parts are commonly available. so someone coul
in boston. nbc's pete williams has been following the investigation in d.c. all day. pete, good evening. >> brian, good evening. still so many questions, but one has been answered, how many explosive devices were left at the scene. that answer is two. and officials describe them as crudely made but effectively used. and as of tonight, no suspects, no idea who did it or why. >> reporter: investigators have begun the process of recovering tiny pieces of the bombs to learn how they were made. they say it appears the devices were assembled inside pressure cooker pots similar to this one packed with bbs, ball bearings and nails to magnify the injury. as these homeland security bulletins note, pressure cookers have been used for decades in terror bombings. instructions for making them appear on the internet including just last month in an al qaeda magazine "inspire." investigators say the explosive in boston was most likely smokeless powder, gunpowder like this, available at sporting goods store, not something more powerful like dynamite. and they believe the bombs were carried to the scene i
. and for the very latest on the investigation, we're joined now by nbc news justice correspondent pete williams from washington. so, pete, the very latest on the pressure cooker scenario that you're hearing? >> right. as you say, used for decades in terms of building bombs, so that's not going to be an area of inquiry that will immediately lead them in a certain direction, because the instructions, unfortunately, for making these devices are all over internet. just last month, the al qaeda online magazine "inspire" repeated an article that showed how to build pressure cooker bombs. so they've been out there for a long time. the part, the components of this device appear not to be very fancy. in addition to that, there were shrapnel, ball bearings, bbs, from the sound of the doctors you heard at the beginning of your program, apparently nails as well. and then for the explosive basically gun powder, smokeless powder that's commonly available in sporting goods stores. so all these pieces are easily available. some kind of timer as well. then placed in black sacks and put in two different spots. so wha
williams in our washington bureau tonight. pete, thanks. and after this sad, depressing day in boston, lester holt, part of our team here, is here tonight with the news of this day. lester? >> brian, this heavy police presence will be a way of life for boston residents for some time to come, but there were thousands of visitors here, spectators, they came to bear witness to a great sporting event. instead they are filing out of town having beared witness to terror. >> reporter: a runner, a camera strapped to her body with a view of the finish line on the horizon. a view that changes in an instant. it is one of countless images that captured the day, images authorities hope also captured the bombers. >> something just blew up. >> there has to be hundreds, if not thousands, of photographs or videos or observations that were made down at that finish line yesterday. and they're sitting out there amongst everyone that's watching this event this morning. >> i need officers. a secondary device! >> reporter: recordings of emergency radio traffic have been released. >> there's multiple people
this hour with nbc justice correspondent pete williams and former cia counterterrorism director larry johnson. two best guests we could have. pete, let's go back to that picture we just saw from whdh up there, boston affiliate of nbc. what are the experts making of the fact that it was there, that bag, whatever it is sitting there before the explosion and then in this picture taken afterwards you can see the smoke trailing up to the left there diagona diagonally? what does that tell us? >> it tells us it's something they're investigating, chris. they know, they believe very strongly that the bombs were brought to the scene in backpacks. but i think it's fair to say they're looking at whether after they got there, they put them in these shopping bags. now, that thing next to the -- to the bag that's just on the edge of the little spot shot circle there, that is a trash receptacle. could it be? it's a question. could it be the devices were placed in these trash bags next to trash receptacles to look inconspicuous? it's something that they're -- that they're studying and something that i
, consistent with the injuries the doctors found yesterday. nbc news pete williams reported that the bombs were triggered by a timer as opposed to a remote detonator. we learned this type of bomb is frequently used in afghanistan and iraq, but also recently popped up in the u.s. one of the devices used in the times square attempted bombing was apparently a pressure cooker. now, we are hearing about a press conference at the top of the hour. we'll carry it live for you on nbc 4 and nbcwashington.com. >>> all right, thank you, aaron. >>> and we're finding out more about the victims killed as the identities were revealed. three died yesterday, we now know two names, 29-year-old krystle campbell is one just confirmed to nbc news by her father this afternoon. she was a restaurant manager from medford massachusetts. this other guy, 8 years old, killed while they stood by the finish line. neighbors are haunted by this traged tragedy. >> to know he will never come home, it kept me up. >> martin released a statement, saying the wife and daughter suffered injuries, he asked others to pray for his family.
. >> bringing in pete williams into the discussion. i want to start with the images, the first one lester showed u. us, the immediate aftermath, from across the street, looking down. you will see a man in black, his clothing has been shredded, running from the scene. are investigators looking at that? this is not the one okay, here is the one we are talking about. our invest gators looking at him running to or away from terror? >> i would say running away. with a window over the finish line, we saw this man. can you see the impact of the blast partially ripped his clothes away. now, the same thing was said about this exchange student. we are not sure -- it could be the exchange student, they are not sure. if any event, the fbi no longer considers him, they think he was just a victim. >> and the mail box, there is a package, a bag at the foot of that mail box, we zoom in on that one. and the immediately aftermath of the explosion. it looks like it took place almost exactly in that spot. what you are hearing from invest gators from this? >> they have other pictures that show the same thing. the q
williams who is live in washington. pete, what are you hearing about the investigation to the bombings in boston? >> right. it's all about putting pieces of puzzles together. first of all, the devices themselves are here in the suburban washington in the fbi's crime lab where they will try to reinstruct them. they believe they were carried to the scene in black nylon duffel bags and say that because of the weight that each device probably weighed 20 pounds filled with gun powder and shrapnel and in pressure cookers. you can see the brand name of the pressure cookers in a couple of the pictures that we have obtained. the second part of it is the pictures themselves that they are asking people to send in and they are getting a huge amount, so far, three terra bytes of data that is thousands of hours of video and still pictures. they want more. this is from our affiliate in boston. it shows in the first picture what appears to be a trash bag next to the green thing is a trash container and looking at whether the bombs might have been place inside trash bags to look less conspicuous and a
Search Results 0 to 11 of about 12 (some duplicates have been removed)